DE3612915C2 - Hedge trimmer knife - Google Patents
Hedge trimmer knifeInfo
- Publication number
- DE3612915C2 DE3612915C2 DE3612915A DE3612915A DE3612915C2 DE 3612915 C2 DE3612915 C2 DE 3612915C2 DE 3612915 A DE3612915 A DE 3612915A DE 3612915 A DE3612915 A DE 3612915A DE 3612915 C2 DE3612915 C2 DE 3612915C2
- Authority
- DE
- Germany
- Prior art keywords
- hedge trimmer
- tooth
- teeth
- knife
- trimmer knife
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005520 cutting process Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims 2
- 210000003739 neck Anatomy 0.000 claims 2
- 239000010959 steel Substances 0.000 claims 2
- 230000001154 acute effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 229910000760 Hardened steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
- A01G3/047—Apparatus for trimming hedges, e.g. hedge shears portable
- A01G3/053—Apparatus for trimming hedges, e.g. hedge shears portable motor-driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
- Heat Treatment Of Articles (AREA)
Description
Die Erfindung geht aus von einem Heckenscherenmesser nach der Gattung des Hauptanspruchs.The invention relates to a hedge trimmer knife of the genus Main claim.
Bekannte Heckenscherenmesser dieser Art haben ungleich geformte Zähne und Zahnlücken. Jeder einzelne Zahn muß aus einem vorgefertigten Schneidklingenblatt ausgestanzt werden. Das ist ein auf wendiges Verfahren. Allenfalls können zwei oder drei Zähne zugleich ausgestanzt werden. Ein Werkzeug, mit dem große Schneidklingen, wie lange Heckenscherenmesser, mit einem Schnitt ausgestanzt werden können, ist so nicht realisierbar. Auch die dafür erforderliche Stanze müßte unverhältnismäßig stark sein. Beim Ausstanzen der Zähne entsteht somit recht viel Materialabfall, was die Herstellung eben falls verteuert.Known hedge trimmer blades of this type are unequal shaped teeth and tooth gaps. Every single tooth has to come from one prefabricated cutting blade are punched out. That is an on agile procedure. At most two or three teeth can be used at the same time be punched out. A tool with which large cutting blades, like long hedge trimmers, punched out with one cut cannot be realized in this way. Also the necessary one The punch should be disproportionately strong. When punching out the teeth there is a lot of material waste, which is what the manufacture if more expensive.
Durch die DE-GM 74 30 813 ist ein gattungsgemäßes Hecken scherenmesser bekannt, das gute Schneideigenschaften hat, bei dessen Herstellung aber aufgrund der unterschiedlichen Breite der Messerzähne gegenüber den Zahnlücken viel Mate rialabfall entsteht. Dies führt zu einer Verteuerung dieser Heckenscherenmesser. Auch aus der DE-AS 21 64 548 sowie der US 3,538,693 sind gattungsgemäße Heckenscherenmesser be kannt, wobei deren Zahnflanken so verlaufen, daß jeder Zahn kopf deutlich breiter ist als jeder Zahnhals, mit dem Ergeb nis, daß bei der Messer-Herstellung erhebliche Abfallmengen an hochwertigem Messermaterial entstehen. Daraus ergeben sich die oben genannten Nachteile.DE-GM 74 30 813 is a generic hedge known scissors knife, which has good cutting properties, in its manufacture but due to the different Width of the knife teeth compared to the tooth gaps a lot of mate rial waste arises. This makes them more expensive Hedge trimmer knife. Also from DE-AS 21 64 548 and the US 3,538,693 are generic hedge trimmer knives knows, whose tooth flanks run so that each tooth head is significantly wider than any tooth neck, with the result nis that in the manufacture of knives considerable amounts of waste high quality knife material. Resulting from it the above disadvantages.
Der Erfindung liegt die Aufgabe zugrunde, den Materialabfall und dementsprechend die Herstellungskosten beim Herstellen des gattungsgemäßen Heckenscherenmessers deutlich zu verringern.The invention has for its object the waste of material and accordingly the manufacturing cost of manufacturing to significantly reduce the generic hedge trimmer knife.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This task is accomplished by the characterizing features of claim 1 solved.
Das erfindungsgemäße Heckenscherenmesser hat gegenüber dem bekannten Stand der Technik den Vorteil optimaler Werkstoffausnutzung. Abfall entsteht praktisch nur noch im Befesti gungsbereich der Klingen außerhalb des Bereichs der Zähne. The hedge trimmer knife according to the invention has the advantage more optimal than the known prior art Material utilization. Waste practically only arises in the attachment range of the blades outside the area of the teeth.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vor teilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Heckenscherenmessers möglich. Besonders vorteilhaft ist bei der Herstellung dieser Messerklingen das Ausführen des Trenn schnitts mittels eines Laserstrahles. Das macht die Herstellung aus gehärtetem Stahlblech möglich und es entstehen Schnittkanten grö ßerer Härte bzw. besserer Standzeit. Außerdem können hierdurch pro blemlos auch kleine Radien und scharfe Ecken mit Schnitt verwirk licht werden. Schließlich sind insgesamt auch kürzere Bearbeitungs zeiten erzielbar.The measures listed in the subclaims provide for partial further training and improvements of the main claim specified hedge trimmer knife possible. Is particularly advantageous in the Making these knife blades performing the cutting cut using a laser beam. That is what makes it Hardened steel sheet possible and cut edges are larger greater hardness or better service life. This also allows pro Small radii and sharp corners with a cut are easily realized become light. After all, overall there are also shorter machining times times achievable.
Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Figur zeigt ein Heckenscherenmesser in der Draufsicht und teilweise ein zweites Heckenscherenmesser.An embodiment of the subject of the invention is in the Drawing shown and in the description below explained. The figure shows a top view of a hedge trimmer knife and partly a second hedge trimmer knife.
Ein Heckenscherenmesser 1 und ein zweites Heckenscherenmesser 2 sind mit Zähnen 3 ausgestattet, die in die jeweiligen Zahnlücken 4 so passen, daß sie lediglich um die Breite eines zwischen sie gelegten Trennschnittes unterschiedlich sind. Die Heckenscherenmesser 1 und 2 und weitere, nicht dargestellte ihnen benachbarte Heckenscheren messer werden erfindungsgemäß mittels eines Laserstrahles aus einem gehärteten Stahlblech so ausgeschnitten, daß mit einem Trennschnitt jeweils eine Zahnreihe (zu 1) und eine benachbarte, um die halbe Zahnteilung versetzte zweite Zahnreihe (zu 2) entstehen. Da das Be festigungsende 5 der Heckenscherenmesser 1 und 2 aus technischen Gründen meist nicht mit zueinander passenden Konturen gestaltet wer den kann, werden die Heckenscherenmeeser so ausgeschnitten, daß die Befestigungsenden jeweils den entgegengesetzten Enden der be nachbarten Heckenscherenmesser zugeordnet sind. Auf diese Weise ist es möglich, aus einem großen gehärteten Blech mehrere nebeneinander liegende Heckenscherenmesser ohne wesentlichen Materialverlust aus zuschneiden. Dabei erhalten die Zähne 3 als Folge des gewählten Schnittverfahrens Schnittkanten größerer Härte und damit besserer Standzeit.A hedge trimmer knife 1 and a second hedge trimmer knife 2 are equipped with teeth 3 which fit into the respective tooth gaps 4 in such a way that they differ only by the width of a separating cut between them. The hedge trimmer knives 1 and 2 and other hedge trimmer knives, not shown, are cut out according to the invention by means of a laser beam from a hardened steel sheet in such a way that one row of teeth (to 1 ) and an adjacent second row of teeth offset by half the tooth pitch (to 2 ) arise. Since the fastening end 5 of the hedge trimmer knives 1 and 2 are usually not designed for technical reasons with matching contours, the hedge trimmer knives are cut out so that the fastening ends are each assigned to the opposite ends of the neighboring hedge trimmer knives. In this way it is possible to cut out several side-by-side hedge trimmers from a large hardened sheet without significant material loss. As a result of the selected cutting method, the teeth 3 receive cut edges of greater hardness and thus a longer service life.
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3612915A DE3612915C2 (en) | 1986-04-17 | 1986-04-17 | Hedge trimmer knife |
GB8706367A GB2189179B (en) | 1986-04-17 | 1987-03-18 | A method of manufacturing cutting blades with teeth and cutting blades so manufactured |
CH1080/87A CH672905A5 (en) | 1986-04-17 | 1987-03-20 | |
IT20063/87A IT1203468B (en) | 1986-04-17 | 1987-04-10 | CUTTING BLADES WITH TEETH, ESPECIALLY HEDGE SHEAR KNIFE AND PROCEDURE FOR ITS MANUFACTURE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3612915A DE3612915C2 (en) | 1986-04-17 | 1986-04-17 | Hedge trimmer knife |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3612915A1 DE3612915A1 (en) | 1987-10-22 |
DE3612915C2 true DE3612915C2 (en) | 1996-10-02 |
Family
ID=6298865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3612915A Expired - Lifetime DE3612915C2 (en) | 1986-04-17 | 1986-04-17 | Hedge trimmer knife |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH672905A5 (en) |
DE (1) | DE3612915C2 (en) |
GB (1) | GB2189179B (en) |
IT (1) | IT1203468B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045229A1 (en) * | 2000-09-13 | 2002-03-28 | Bayerische Motoren Werke Ag | Brake disc component manufacturing method uses laser cutting beam for separating component from sheet or rod material |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1229739B (en) * | 1989-05-16 | 1991-09-07 | Savio Spa | PROCEDURE FOR THE REALIZATION OF COMBS TO BE APPLIED TO SUCTION VENTS FOR THE COLLECTION OF THE BAND OF YARNS WRAPPED IN PACKAGING AND PERFECTED COMBS SO OBTAINED. |
US5249752A (en) * | 1989-05-16 | 1993-10-05 | Savio S.P.A. | Combs for application to suction nozzles for seizing the end of yarns wound in packages |
IT1267685B1 (en) * | 1994-02-11 | 1997-02-07 | Valex Spa | HEDGE CUTTER BLADE |
JPH10327669A (en) * | 1997-05-27 | 1998-12-15 | Kioritz Corp | Clipper cutting blade |
GB2371771A (en) * | 2001-02-01 | 2002-08-07 | Black & Decker Inc | Hedge trimmer blade and method of manufacture thereof |
DE102004047878A1 (en) * | 2004-10-01 | 2006-04-20 | Gardena Manufacturing Gmbh | hedge clippers |
DE102006006024B4 (en) * | 2006-02-08 | 2013-12-12 | Ab Skf | Method of making rings |
DE102007005182B3 (en) * | 2007-01-29 | 2008-07-31 | Mogatec Moderne Gartentechnik Gmbh | Case-hardened drive pins fastening method, involves attaching counter bores extending shearing blades at side into through-holes by laser cuttings, and fastening drive pins by material flow resulting from associated riveted bolts |
DK2485864T3 (en) * | 2009-10-08 | 2014-11-03 | Tomologic Ab | CONTROL RULES AND VARIABLES TO CUT |
BR112013025570B1 (en) * | 2011-04-07 | 2018-05-22 | Tomologic Ab | METHOD AND SYSTEM FOR CUTTING MACHINE VARIOUS PARTS OF A PIECE OF MATERIAL |
FR3006930B1 (en) * | 2013-06-17 | 2015-06-26 | Peugeot Citroen Automobiles Sa | METHOD FOR MANUFACTURING TOOLS FOR MAINTAINING A BODY PIECE SUCH AS THE BONNET ON THE BODY OF A VEHICLE DURING THE PAINTING PROCESS |
DE102023202454A1 (en) | 2023-03-20 | 2024-09-26 | Robert Bosch Gesellschaft mit beschränkter Haftung | Process for producing cutting and/or saw blades, cutting and/or saw blade, cutting and/or sawing tool and hedge trimmer |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB215203A (en) * | 1923-06-29 | 1924-05-08 | Jack White | A cutting and sawing instrument for domestic use |
GB498694A (en) * | 1937-07-24 | 1939-01-12 | Robert Robertson | Combined rake and cutter for grass and other vegetation |
DE885321C (en) * | 1942-06-12 | 1953-08-03 | Luigi Dr-Ing Castoldi | Mower |
GB649138A (en) * | 1948-02-09 | 1951-01-17 | Pieter Van Der Heijden | Improvements in and relating to shears for making cuts in dough for bread baked in tins |
US3583067A (en) * | 1968-07-12 | 1971-06-08 | Arthur Briskman | Universal power-operated handtool |
US3538693A (en) * | 1969-08-11 | 1970-11-10 | Sigvard Hast | Lawn-mowers |
DE2164548B2 (en) * | 1971-12-24 | 1973-12-20 | Eisenwerk Milspe Der Schaffgotsch Bergwerksgesellschaft, 5828 Ennepetalmilspe | Device for cutting hedges |
US4027390A (en) * | 1974-11-01 | 1977-06-07 | Jarvis Products Corporation | Saw blade |
US4469930A (en) * | 1981-07-17 | 1984-09-04 | Fuji Tool & Die Co., Ltd. | Three-dimensional laser cutting system by a playback method |
GB2142515B (en) * | 1983-06-27 | 1986-07-16 | Eric William Boor | Grass cutter machine |
FR2568744A3 (en) * | 1984-08-08 | 1986-02-14 | Berseille Fernand | Hand weeder |
DE3432681A1 (en) * | 1984-09-05 | 1986-03-13 | Atz-Maria 8751 Mespelbrunn Denger | Method for producing marquetry |
-
1986
- 1986-04-17 DE DE3612915A patent/DE3612915C2/en not_active Expired - Lifetime
-
1987
- 1987-03-18 GB GB8706367A patent/GB2189179B/en not_active Expired - Fee Related
- 1987-03-20 CH CH1080/87A patent/CH672905A5/de not_active IP Right Cessation
- 1987-04-10 IT IT20063/87A patent/IT1203468B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10045229A1 (en) * | 2000-09-13 | 2002-03-28 | Bayerische Motoren Werke Ag | Brake disc component manufacturing method uses laser cutting beam for separating component from sheet or rod material |
Also Published As
Publication number | Publication date |
---|---|
DE3612915A1 (en) | 1987-10-22 |
CH672905A5 (en) | 1990-01-15 |
IT8720063A0 (en) | 1987-04-10 |
GB2189179A (en) | 1987-10-21 |
IT1203468B (en) | 1989-02-15 |
GB2189179B (en) | 1990-03-14 |
GB8706367D0 (en) | 1987-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition |